Environmental degradation does not stop at national borders and a considerable part of such environmntal degradation is associated with commodity exports from developing countries to OECD countries and other high-income countries. Market conditions in these markets are often such that cut-throat competition prevents internalisation of the costs of better environmental preservation. Meanwhile, commodity exports form an indispensable source for financing imports in developing countries. This article proposes an economic instrument that allows the internalisation of environmental preservation costs for primary commodities, the International Commodity-Related Environmental Agreement (ICREA). The article shows how the instrument could work.